hi. i'm new to bikeforums.net, though i've been watching for a while, and very new to fixed gear bikes. i want to try it out and get a fixie but I have no clue where to start/what a good starting point is. i've been checking ebay and looking at some, but i hear they are pretty crappy bikes (at least the cheaper ones available on ebay.) i have some money to spend, but would like to keep it around/under the 250 dollar range. would it be best to try and build my own fixie and learn bike mechanics that way (which i have very little knowledge in as well) or to try and find a bike to buy?

i'm sure this question is asked a lot, i'm just not sure where to start. any pointers would be great.